Formulas

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Algebra 1 Formulas:
Identify Property for Addition
For all real numbers a, a+0=a and 0+a=a.

Additive Inverse Property
For every real number a, there is exactly one real number -a,
a+(-a)=0 and -a+a=0.

Finding Slope
m=y2-y1
x2-x1

Ordered Pairs